diff --git a/.gitignore b/.gitignore
index 6574c27..e26324d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,4 @@ examples/old
 publish.sh
 dist/
 .env
-test_pipedef.py
+atest_pipedef.py
diff --git a/pyproject.toml b/pyproject.toml
index 17a54df..160d237 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,12 @@ packages = ["src/vip_client"]
 [tool.hatch.version]
 path = "src/vip_client/__init__.py" 
 
+[tool.pytest.ini_options]
+pythonpath = [
+  "src"
+]
+
 [project.urls]
 Homepage = "https://vip.creatis.insa-lyon.fr"
 Source = "https://github.com/virtual-imaging-platform/VIP-python-client"
-Tracker = "https://github.com/virtual-imaging-platform/VIP-python-client/issues"
+Tracker = "https://github.com/virtual-imaging-platform/VIP-python-client/issues"
\ No newline at end of file
diff --git a/src/vip_client/__init__.py b/src/vip_client/__init__.py
index 2ebe21e..001596c 100644
--- a/src/vip_client/__init__.py
+++ b/src/vip_client/__init__.py
@@ -8,18 +8,7 @@
 """
 
 # Informations
-__version__ = "0.1.3"
+__version__ = "0.1.4"
 __license__ = "CECILL-B"
 
-# Import classes and packages to secure the namespace
-if __package__ != "vip_client":
-    import sys
-    from pathlib import Path
-    SOURCE_ROOT = str(Path(__file__).parents[1]) # <=> /src/
-    sys.path.append(SOURCE_ROOT)
-# Run utils/__init__.py
-import vip_client.utils 
-# Run classes/__init__.py
-import vip_client.classes 
-# Shortcut to import the VipSession class
-from vip_client.classes import VipSession
\ No newline at end of file
+from vip_client.classes import VipSession
diff --git a/src/vip_client/classes/__init__.py b/src/vip_client/classes/__init__.py
index 8274163..cc36a19 100644
--- a/src/vip_client/classes/__init__.py
+++ b/src/vip_client/classes/__init__.py
@@ -7,17 +7,9 @@
 - VipLoader (planned): base class.
 """
 
-# Import classes and modules to secure the namespace
-if __package__ != "vip_client.classes":
-    import sys
-    from pathlib import Path
-    SOURCE_ROOT = str(Path(__file__).parents[2]) # src/
-    sys.path.append(SOURCE_ROOT)
-# Import utilities
-import vip_client.utils
 # Replace each class module by its class in the namespace
 from vip_client.classes.VipSession import VipSession 
 from vip_client.classes.VipLauncher import VipLauncher
 from vip_client.classes.VipCI import VipCI
 from vip_client.classes.VipLoader import VipLoader
-from vip_client.classes.VipClient import VipClient 
\ No newline at end of file
+from vip_client.classes.VipClient import VipClient
diff --git a/tests/test_VipCI.py b/tests/test_VipCI.py
index 0c07205..92fa6b5 100644
--- a/tests/test_VipCI.py
+++ b/tests/test_VipCI.py
@@ -4,8 +4,8 @@
 from pathlib import *
 
 import pytest_mock
-from src.vip_client.utils import vip
-from src.vip_client.classes import VipCI
+from vip_client.utils import vip
+from vip_client.classes import VipCI
 from mocked_services import mock_vip_api, mock_girder_client, mock_pathlib, mock_os
 from FakeGirderClient import FakeGirderClient
 
diff --git a/tests/test_VipLauncher.py b/tests/test_VipLauncher.py
index d5fe2a7..366fe86 100644
--- a/tests/test_VipLauncher.py
+++ b/tests/test_VipLauncher.py
@@ -2,8 +2,8 @@
 import pytest
 from pathlib import *
 
-from src.vip_client.utils import vip
-from src.vip_client.classes import VipLauncher
+from vip_client.utils import vip
+from vip_client.classes import VipLauncher
 from mocked_services import mock_vip_api, mock_pathlib, mock_os
 
 
diff --git a/tests/test_VipSession.py b/tests/test_VipSession.py
index cc4fdaf..f1b2d9e 100644
--- a/tests/test_VipSession.py
+++ b/tests/test_VipSession.py
@@ -4,8 +4,8 @@
 from pathlib import *
 
 import pytest_mock
-from src.vip_client.utils import vip
-from src.vip_client.classes import VipSession
+from vip_client.utils import vip
+from vip_client.classes import VipSession
 from mocked_services import mock_vip_api, mock_pathlib, mock_os
 
 def get_properties(obj) -> dict:
diff --git a/tests/test_global.py b/tests/test_global.py
index 1784bfd..d6beb14 100644
--- a/tests/test_global.py
+++ b/tests/test_global.py
@@ -1,4 +1,4 @@
-from src.vip_client.classes import VipSession, VipLauncher, VipCI
+from vip_client.classes import VipSession, VipCI, VipLauncher
 from mocked_services import mock_vip_api, mock_pathlib, mock_os, mock_girder_client
 import pytest
 
diff --git a/tests/test_vip_utils.py b/tests/test_vip_utils.py
index f559c0e..683ec04 100644
--- a/tests/test_vip_utils.py
+++ b/tests/test_vip_utils.py
@@ -2,7 +2,7 @@
 import time
 import os
 
-from src.vip_client.utils.vip import *
+from vip_client.utils.vip import *
 
 BASE_PATH_VIP = '/vip/Home/API/client_tests/'
 BASE_PATH_LOCAL = 'tests/data/'